U6043B Datasheet, PDF (2/9 Pages) ATMEL Corporation – FLASHER IC WITH 19-M SHUNT

Block Diagram
Figure 1. Car Flasher Application Circuit
C₁
4
6
2
Measuring comparator
V ₆ - 49 mV
20 kW
5 kW
K₁
7
R₃
Shunt
18 mW
+ V_S
+ 49
K₂
Pulse
R₁
generator
49 a-Comparator K ₂
20 kW
49 a-Comparator K ₃
K₃
5
20 kW
3
Relay
8
R₂
23 V
5 kW
IC Ground
1
1.5...2.2 kW
R₄
470 W
49 a
5W
GND
- 31
21 W
21 W
21 W
Indicator lamps
21 W 5 W
2 U6043B
4726A–AUTO–06/03